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Why does my XW+NA multi-unit system report F63 when a larger load is applied?

The XW+NA will pass final calibration when the output voltage measures 120VAC +/-3% (116.4VAC-123.6VAC L-N). Normally, you can set the Slave(s) 
SEARCH setting to "Enable" and the AC voltage differential will not be a factor in contributing to a "phantom load" effect. In some cases it is necessary to restore each unit to factory 
defaults and reconfigure [make sure to set SEARCH to "Enabled" on the Slave(s) afterward]. If the output voltage varies >4VAC from one unit to another, it may be necessary to use
CnxtCfgToolAI to adjust the output voltages so they match more closely. 
Contact Technical Support and we can set you up with a loaner.
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